The 1794-OW8XT module is a relay output module from the Allen-Bradley/Rockwell Automation Flex I/O 1794 series. It has 8 relay output channels that are isolated and normally open. The supply voltage range for the 1794-OW8XT relay output module is from 19.2 to 31.2 Volts DC with 126 milliamps of current. It is recommended to add fusing to the output channels to protect them during operation. The 1794-OW8XT relay output module has a wide operating temperature range from -4 to 158 degrees Fahrenheit and a storage temperature range from -40 to 185 degrees Fahrenheit.
Technical specifications for 1794-OW8XT
| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Flex I/O Relay Output Module |
| Product Line | Flex I/O 1794 |
| Part Number | 1794-OW8XT |
| UPC | 612598592609 |
| Weight | 0.31 lbs (0.14 kg) |
| Outputs | 8 Relay |
| Off-state Leakage Current | 1.0mA through Snubber Circuit |
| Minimum Contact Load | 100 ?A @ 100 mV DC |
| Relay Contact | 250V AC |
| Initial Contact Resistance | 30 m? |
| Bounce Time | 1.2ms |
| Switching Frequency | 1 operation/3 s (0.3Hz at rated load) max |
| Flexbus Current | 5V DC |
| Power Dissipation | 5.5W |
| Thermal Dissipation | 18.8 BTU/hr. max. |
Description
The 1794-OW8XT output module is an 8-relay output module that belongs to the 1794 module series by Allen-Bradley. The main objective of the Allen-Bradley 1794-OW8XT 8-relay output modules is to connect different kinds of equipment through the use of several networks. Its compact design promotes space conservation. This unit comes with electromagnetic relays that can operate at high temperatures without any problems. This module operates with a voltage of 24 Volts DC and it can be used with 9 different terminal base units available from Allen-Bradley. The Allen-Bradley 1794-OW8XT 8-relay output module is conformally coated which enables it to withstand high temperatures. This drive comes with an external power supply of 125 milliamps and a contact resistance of 30 milliohms. It can operate non-stop with a switching frequency of 0.3 Hertz and a bounce time of 1.2 milliseconds.
The Allen-Bradley 1794-OW8XT 8-relay output module develops a power dissipation rating of 5.5 Watts and the continuous isolation voltage rating for this unit is 250 Volts. The module also has a thermal dissipation rating of 18.8 BTU/hour while operating with a power supply voltage of 31.2 Volts DC. The overall size of the module consists of a height of 46 millimeters, a width of 94 millimeters, and a depth of 53 millimeters. When installing this module, it needs to be grounded through the DIN rail. It is recommended to use a zinc-plated yellow-chromate steel DIN rail for the installation and grounding of the module. It is recommended that a technician perform the installation and start-up of this module since there is more than 1 piece of advanced equipment involved.
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